Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 3 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 03/31/2021   07:11:45   (  -0.04,-137.21) (   0.42,-134.99)  252.03                 6
 03/31/2021   19:31:45   (   0.05,-137.22) (   0.69,-140.14)  332.98                80
 04/02/2021   19:19:34   (   0.04,-137.21) (   0.01,-137.20)    3.55                80
 04/04/2021   19:10:03   (   0.04,-137.19) (  -0.61,-134.24)  335.17                80
 04/05/2021   07:31:26   (  -0.04,-137.17) (  -0.50,-139.43)  257.52                80
 04/07/2021   07:16:34   (  -0.03,-137.14) (   0.13,-136.48)   75.93                80
 04/09/2021   07:04:22   (  -0.03,-137.12) (   0.76,-133.53)  409.27                80
 04/09/2021   19:25:37   (   0.03,-137.13) (   0.35,-138.68)  176.33                80
 04/11/2021   19:16:05   (   0.03,-137.10) (  -0.28,-135.72)  156.77                80
 04/12/2021   07:37:29   (  -0.03,-137.08) (  -0.82,-140.92)  435.97                80
 04/13/2021   19:03:52   (   0.03,-137.07) (  -0.86,-132.76)  489.29                80